I bought my house with a pool in October 2020. Last Friday I had my pool converted to salt water. I've been trying to get the Chemicals balanced out and today I came home to a huge hole in my liner at the deep end. It wasn't there yesterday evening. Sunday, I vacuumed really well bc I had to treat for yellow algae. That night I added 12 bags of salt (first time putting salt in) and Liquid Chlorine. Monday my Chlorine was 0 so I added stabilizer to the skimmer very slowly (4lbs) then a hr or so later I added muriatic acid to lower the PH bc it was over 8. I'm not sure the exact PH bc my Taylor test kit said if the test turned purple, it was too high. Then a couple hours later I added 3 gallons on Liquid chlorine. Tested yesterday and PH was in normal range. Chlorine was a little high but not bad. Then today, this is what I came home to. Idk how or why, unless it was caused from the acid.. I really have no idea what I'm doing. I'm a first time pool owner. Can Acid cause the liner to do this?